Toughening and reinforcing alumina matrix composite with single-wall carbon nanotubes

被引:84
作者
Fan, Jin-Peng
Zhuang, Da-Ming [1 ]
Zhao, Da-Qing
Zhang, Gong
Wu, Min-Sheng
Wei, Fei
Fan, Zhuang-Jun
机构
[1] Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Dept Chem Engn, Beijing 100084, Peoples R China
关键词
NANOCOMPOSITES;
D O I
10.1063/1.2336623
中图分类号
O59 [应用物理学];
学科分类号
摘要
The authors report an efficient way of incorporating single-wall carbon nanotubes (SWNTs) into alumina matrix with strong interfaces by heterocoagulation. The fracture toughness of SWNTs/Al2O3 composite reaches 6.40 +/- 0.3 MPa m(1/2), which is twice as high as that of unreinforced alumina. The flexure strength of the composite also increases by 20%. The main toughening mechanism is crack bridging of SWNTs, and SWNT pullout takes effect also. (c) 2006 American Institute of Physics.
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页数:3
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